Oil-burner valve



Na. 25, 924. 1,516,946 E. A'." BASEL OIL BURNER VALVE Filed Nov. 26', 1925 2 Sheets-:SheeLl E. A. BASEL OIL BURNER VALVE Filed Nov. 26, 19 3 2 Sheets-Sheet Patented Nov. 25, 1924.

. UNITED STATES ELI A. BASEL, OF KANSAS CITY, MISSOURI.

OIL-BURNER VALVE.

Application filed November 26, 1923. Serial No. 677,147.

' To all whom it may concern:

Be it known that I, ELI A. BAsEL, a citizen of the United States, and a resident of Kansas City, county of Jackson, State of Mimouri', have invented a certain new and useful'Improvement in Oil-Burner Valves, of which the following is a complete specification.

The present; invention relates to controlling devices for regulating the feed of fuel to oil burners, with particular relation to oil burners of the enclosed retort type, in which the regulation must be effected by'the control of the pressure in the fuel passage between the valve and burner. The improved valve, therefore, comprises an automatic 'controlling mechanism adapted to regulate the flow of fuel into the passage between the valve and burner in such a way as to maintain substantially constant pressure within said passage for any given flame condition of the burner for which the valve has been adjusted, regardless of the pressure in the pump or supply tank line.

' ing this purpose, I pro-,

For accomplis vide a, valve adapted to be maintained normally in open position by pressure-responsive means, which means is adapted to be adusted to permit varying degrees of pressure in the fuel passage to effect a closing movement of the valve, in connection with which I also provide an automaticcu-t-off device, adapted to be actuated by the weight of a certain amount of oil overflowing from the burner, theaction of this cut-off device serving to not only positively close the valve, but alsolocking the pressure-responsive means against further operation.

' It is also sought to provide a valve structure'of this general character in which provision is made for effecting the adjustment of the pressure-responsive means by the action of a remote-control means, such as may be regulated either manually or by means of the usual type of thermostatic controlcomvmonly provided for oil burner operation.

In carrying out this feature of the construction,'I provide a pressure-responsive means including a pressure-balancing lever carrying an adjustable weight, the position of which weight is automatically regulated by an appropriate connection with the remotecontrol device. part of the construction is the arrangement ofthe connection between the remote-control means and the pressure-balancing A further feature of this weight whereby different extents of movement or travel may be imparted to the weight by any given movement of the remote-control means, and the initial position of the weight is maintained about uniform for any given adjustment of the connections between it and the remote-control means.

It-is further sought to provide a construction of this general character in which provision is also inclded for suitably retardingthe operation or movement of the remote-control means and the connections operated therefrom, and particularly as regards that movement corresponding to an increase in presure allowed to take place between the valve and burner corresponding to an increase in the. supply of fuel thereto. With the foregoin general objects in view, the invention wil now be described by reference to the accompanying drawings illustrating one form of construction which I have devised for embodying .the proposed improvements, after which those features deemed to be novel will be particularly set forth in the appended claims.

In the drawmgs- Figure 1 is a front elevation illustrating a valve or oil burner controlling device constructed in accordance with the present invention; 7

Figure 2 is a plan view of the same;

Figures 3 and 4 are sections taken on the lines IIIIII and IVIV, respectively, of Figure 2, the dotted lines in Figure 3 illustrating the position of the part after the operation of the automatic cut-off due to oil overflowing from the burner;

Figure 5 is an enlarged section taken'on the line V--V of Figure 3; and

Fi ire 6 isa detalled section showing the interior of a cylinder forming a part of the retarding 'devicehereinafter referred to.

Referring now to the. drawings in detail, these illustrate the improved valveas comrisin av air of valve casin sections 10 I taining the proper pressure for the operation of the valve and burner. The oil supply'pipe 13 communicateswith aninterior passa e 14 within the valve section 11 and provi ed with an outlet port 15 controlled .by a valve 16 which regulates the flow of fuel from the. passage 14 into-the fuel pas-, sage" 17 within the valve casing section 11, from which fuel passage 17 a pipe 18 leads directly to the burner (not shown).

The valve 16 is carried within a yoke frame 20 which is suitably attached centrally to one face of the diaphragm 12, the opposite face of which is provided with a connection in the form of a rod 21 slidingly mounted in a bearing 22 provided in the casin section 10 in alinement with the center 0% the diaphragm 12, as shown in Figures 3 and 4. The upper end of the rod 21 is threaded for adjustment within a sleeve 23 which is pivotally mounted upon one end of a lever 24 (as indicated at 25), the outer portion of this lever carrying a pressure-balancing weight 26 which 15 provided with a roller 27 adapted for travel along the upper edge of the lever. .The'

intermediate portion of this lever extends througha guide passage 28 provided in a bracket portion 29' formed on the upper portion of the valve casing section 10, which i is also formed-with bracket cars 30 (see Figure 1) for fulcrumin as at 31, a lever,

32 which is provided with a .pivotal connection 33 with a fulcrum link 34, the upper end of which provides a fulcrum pivot 35 for the inner end of the lever 24. The lever or arm 32 is maintained normallyelevated, as illustrated in Figure 1 and by the full lines in Figure 3, by the action of a coil spring. 36 connected to the arm 32 and also to the bracket 29, a pro'ection 37 on the inner end of the arm 32 orming a stop for limiting its movement into raised position, which corresponds to a lowering of the fulcrum link 34 and the pivot '35 for the lever 24, whereby a certain limited amount of play is permitted the lever within, the passage 28 and between the upper portion of the bracket 29 and a stop pin 38 within said passage 28, as clearly shown in Figure 3. By this means, the weight 26' may utilized to maintain the valve 16 normally in open position against any initial pressure within the fuel passage 17 tending to close the valve. Obviously when this pressure rises to a certain degree, in excess of the counter-balancing action ,of' the weight 26 and its connections to the diaphragm 12, the valve will at once move into closed position in response to the ac tion of this excess pressure.

To the outer end of the lever or arm 32 I attach a link 40 adapted to support a suitable receptacle 41 in position to receive any oil which may overflow from the burner, through an overflow pipe 42, the object of which is to utilize the weight of a cerraised, which likewise raises the inner end Q of the lever 24, thereby raising the valve 16 into closed position. This action of the arm 32 has a further result of positively locking the lever 24 in the position shown by the dotted lines in Figure 3, against the pin .38, which prevents any pivotal move:

ment of the lever 24 about either of the pivotal points 25, and 35. Obviously, the weight 26 cooperates in maintaining this locked condition of the valve.

For increasing the usefulness of this improved type of pressure-control valve, I provide means for regulatin the position of the pressure-balancing weig t 26 automatically, in response to the action of either a manual or'automatic thermostat control, through connections which will now be described. In the drawings I illustrate a thermostatically controlled arm 45 provided with a remote-control chain 46 (whichchain may of course, if preferred, be controlled manually as well as automatically by the action of a thermostat), the upward movement of this arm 45 being accomplished by a pull on the chain 46, while its lower movement may take place under the action of gravity, due to the weight of an adjustable counter-weight block 47 carried by said arm 45. To the fulcrum end 48 of the arm 45 is also attached a curved arm 49 pro? vided with a curved slot 50 adapted for the adjustable attachment of one end of a link 51, the opposite end of which is secured to the counter-weight 26, as illustrated in Figure 2; in-order that the latter connection may be made adjustably, a plurality of holes 52 are provided in the link 51 (see Figures 1 and 3). The curvature of the slot 50 is that corresponding to a radius having the length of the link 51, so that while the adjustment of the connection between the arm 49 and the link 51 along the slot 50 provides for varyin the extent of travel of the weight along the arm or lever 24, the initial position of the weight 26, corresponding to the raised position of the arm 45 or minimum flame condition of the burner, may be maintained substantially constant or uniform. r

As above indicated, the downward movement of "the arm 45 is adapted to be produced by the action of its weight 47, and it is desirable to retard this downward movement slightly in order that increase in the idly. 'For'this purpose I provide a retarding means in all respects substantially identical with that described in my co-pending application Serial Number 599,400, filed November 6, 1922. This construction, briefly, comprises a dash pot cylinder 55 having a plunger 56 carried by a plunger rod 57 which is connected by a link 58 with the arm 45. The cylinder 55 is formed with a bypass passage 59 (see Figure 6), communicating with opposite ends of the cylinder, and at its upper end thepassage 59 is fitted with an adjustable screw 60 operating as a valve in conjunction with a port 61 between the passage 59 and the upper end of thee linder, and thereby regulating retarding e ort exerted by the device upon the arm 45. As shown in Figure 6, the plunger 55 carries a valve member 62 adapted-to be maintained closed in the downward movement of the plunger, but opening automatically in the upward movement of the plunger to unclose the plunger openings 63 and thus allowing the plunger to move with comparative freedom on its upward stroke.

In the operation of the control mechanism, the weight 26' is adjusted to correspond to the minimum pressure at which it is desired to operate the burner, or minimum flame condition, and the throw or travel of the weight 26 along the lever or arm 24 into maximum flame condition is regulated by adjusting the connection between the link 51 and the arm 49. Now, with the arm 32 in normal or raised position, the weight 26 will in any of its positions serve to maintain the valve frame 20 lowered (since the lever 24 is operated about the pivot point 35 as a fulcrum), which will thereby maintain the valve 16 in open position, until the pressure within the fuel passage 17 reaches a certain pressure limit corresponding to the position of the weight 26, when the counter-acting influence of said weight will be overcome, with the result of lifting the diaphragm 12 and its connections into valveclosing position. This closed condition of the valve will be maintained until the pressure within the passage 17 will have been reduced, whereupon the weight 26 will again depress the diaphragm'and permit the valve to open. The action of the remote-control means, in permitting operation of'the arm 45 to shift the weight 26 outward along the lever 24, isillustrated by the broken lines in Figure 3, the arm 49 being simply shifted in a direction to throw the weight 26 into its maximum flame condition, thus requiring a higher degree of pressure to be attained within the fuel passage 17 before the valve will be moved into closed position. This movement of the weight 26 into maximum flame position is produced gradually, by the operation of the retarding device, as already explained; In the event of oil overflowing from the burner, due to extinguishment of the flame or other cause, such oil will'be received within the receptacle 41, and the weight of a given quantity of such overflowed oil will produce a downward movement of the lever or arm 32, with the resulting action already explained, of

not only immediatel shutting off the oil supply by closing e valve- 16, but also positively locking the arm 24 against any further pivotal movement about either of the pivot points 25 or 35. This obviously serves to positively prevent any further operation of the valve-controlling means, While the valve is maintained securely in closed position and thereby effectually shuts ofl' the fuel supply.

While I have illustrated and described. what I now regard as the preferred form of construction for embodying the proposed a lever carrying an adjustable counterweight and connected with said diaphragm and cooperating therewith to maintain said valve normally in open position while responding. to a rise in pressure in said passage to permit the closing movement of the valve, and remote-control means for adjusting said counterweight along said lever.

2. Valve regulating vmeans for burners comprising, in combination with the fuel passage leading to the burner, a valve for controlling the flow of fuel into said passage, pressure-balancing means for holding said valve normally in open position while responding to a rise in pressure in said passage to permit closing movement of the valve, and means actuated automatically by the weight of oil overflowing from the burner to render said first means inoperative and simultaneously effect closing movement of the valve.v

3. Valve regulating means for burners comprising, in combination with the fuel passage leading to the burner, a valve for controlling the flow of fuel into said passage, pressure-balancing means for holding said valve normally in open position while responding to a rise in pressure in said passage to permit closing movement of the valve, and means operating in response to the weight of oil overflowing from the burner to positively lock said first means in valve-closed position.

4. Valve regulating means for burners comprising, in combination] withthe fuel passage leading to the burner, a valve for controlling the flow of fuel into said passage, a counter-balancing lever connected with said valve for holding the same normally in open position .while responding to a rise in pressure in said passage to permit closing movement of the valve, and a movable arm pivotally supporting one end of the lever for closing the valve in response to a rise in pressure in said passage, said arm being operative in response to the weight. of oil overflowing from the burner to move and lock said lever in valve-closed position.

6. Valve regulating means for burners comprlsing, in combination with the fuel passage leading to the burner, a valve for controlling the flow of fuel into said passage, a counter-balancing lever connected with said valve for holding the same normaL ly in open position while responding to a rise in pressure in said passage to permit closin movement of the valve, a tilting arm provi ing a fulcrum ,for one end of said lever, and means for maintaining said arm passage leading to the burner, a pressurenormally in elevated positionwhile permitting the same to drop under the weight of a given quantity of oil overflowing from the burner to move said lever into valve-closing position.

Valve regulating means for burners comprising, in combination with the fuel responsive valve controlling the How of fuel into said passage, pressure-balancing means comprising a lever carrying an adjustable counter-weight and connected with said valve. and acting to maintain the valve nor mally in open position while permitting thesame to be closed in response to a rise in pressure in said passage, and remote-control means operative to fidJllSl) said counterweight along said lever to vary the pressure required to close the valve. I

8. Valve. regulating means for burners comprising, in combination with the fuelpassage leading to the burner, apressure responsive valve controlling .the flow of fuel into said passage, pressure-balancing means comprising a lever carrying an adjustable counter-weight and connected with said valve and acting to maintain the valve" normally in open position while permitting the same to be closed in response to a rise in pressure in said passage, and remotecontrol means provided with connections for adjusting said counterrweight along said lever to vary the pressure required to close the valve, said connections being adjustable to vary the travel of said counterweight in response to the action of said control means. 7

9. Valve regulating means for burners comprising, in combination with the fuel passage leading to the burner, a pressureresponsivevalve controlling the flow of fuel into said passage, pressure-balancin means comprising a lever carrying an a justable counter-weight and connected with said valve and acting to maintain the Valve normally in open position while permitting the same to be closed in response to a rise in pressure in said passage, and remotecontrol means including a pivoted arm having a pivotal link connection with said counter-weight for adjusting the latter along said lever tovary the degree of pressure required for closing the valve, said link being adjustably connected to said arm about an are having said link as a radius,

whereby the travel-imparted to the. counterweight by said arm may be varied while maintainingthe starting point of travel constant. t

10. Valve regulating means for burners comprising, in combination with the fuel passage leading to the burner, a pressureresponsive valve controlling the flow of fuel into said passage, pressure-balancing means comprising a lever carrying an adjustable counter-weight and connected with said valve and acting to maintain the valve normally in open position while permitting the same to be closed in response to a rise in pressure in said passage, remote-control means operative to adjust said counterweight along said lever to varythe pressure required to close the valve, and means-for retarding the action of said remote-control means.

11. Valve regulatlng means for burners comprising, in combination with the fuel passage leading to the burners, a pressure-. responsive valve controlling the flow. of

fuel into said passage, mechanical means operating to hold said valve normally in open position while responsive to a predetermined rise in pressure. in said passage to ermitclosing movement of the valve, and means actuated automatically by the weight of oil overflowing from the burner to positively close the valve and to cooperate with said first means in vmaintaining the valve in closed position.

12. Valve regulating means for burners comprising, in combination with the fuel passage leading to the burner, a' valve for controlling the flow of fuel into said ment of the valve, and means actuated by passage, a diaphragm connected with said the weight of oil overflowing from the 1 valve, a lever carrying an adjustable counburner to rock said lever and cooperateter-weight and connected with said diawith said counter-weight in maintaining the phragm and cooperating therewith to mainvalve in closed position.

tain said valve normally in open position In witness whereof I hereunto affix my while responding'to a rise in pressure in signature.

said passage to permit the closing move- ELI A. BASEL. 

